Information on Tablets A-Z
Generic name: Timolol
Other brand names: Betimol, Timoptic-XE
Why is this drug prescribed: Timoptic is a topical medication (applied directly in the eye) that effectively reduces internal pressure in the eye. Timoptic is used in the treatment of glaucoma to lower elevated eye pressure that could damage vision and, with other glaucoma medications, to further reduce pressure in the eye.
Most important fact about this drug: Although Timoptic eyedrops are applied only to the eye, the medication is absorbed and may have effects in other parts of the body. If you have diabetes, asthma, or other respiratory disease, or decreased heart function, make sure your doctor is aware of the problem.
How should you take this medication: Timoptic should be used exactly as prescribed by your doctor. If you are using Timoptic in Ocudose, use the medication as soon as you open the individual unit and throw out any leftover solution. If you are using Timoptic-XE, invert the closed container and shake it once—and only once—before each use. If you need to use other eye medications along with Timoptic, use them at least 10 minutes before you instill Timoptic. Allow 5 minutes with Betimol. If you wear contact lenses, remove them before using Timoptic and wait 15 minutes before reinserting them. Handle the Timoptic solution carefully to avoid contamination. Do not let the tip of the dispenser actually touch the eye. Do not enlarge the hole in the dispenser tip; it is designed to provide just 1 drop. Do not wash the dispenser tip with water, soap, or any other cleaner. To administer Timoptic, follow these steps: Wash your hands thoroughly. Tilt your head back and gently pull your lower eyelid down to form a pocket. Turn the bottle upside down, holding it with your thumb or index finger over the Finger Push Area. Press the bottle lightly until a single drop falls into the eye. Repeat steps 3 and 4 with the other eye if necessary. Replace the cap firmly. --If you miss a dose... If you use Timoptic once a day, apply it as soon as you remember. If you do not remember until the next day, skip the dose you missed and go back to your regular schedule. Do not take 2 doses at once. If you use it more than once a day, apply it as soon as you remember. If it is almost time for your next dose, skip the one you missed and go back to your regular schedule. Do not take 2 doses at once. --Storage instructions... Store at room temperature, protected from light. Keep from freezing.
What side effects may occur: Side effects cannot be anticipated. If any side effects develop or change in intensity, tell your doctor immediately. Only your doctor can determine whether it is safe to continue using this medication. If Timoptic is absorbed into the bloodstream, it can cause additional side effects. The most common side effects are burning and stinging on instillation of the drug. Other side effects may include: Abnormal overflow of tears, anxiety, behavioral changes, blurred or abnormal vision, cataracts, chest pain, cold hands and feet, common cold, confusion, conjunctivitis (pinkeye), cough, decreased sex drive, depression, diarrhea, difficult or labored breathing, difficulty swallowing, disorientation, dizziness, double vision, drooping eyelid, dry mouth, eye discharge, eye dryness or irritation and inflammation, eye pain or itching and tearing, fainting, fatigue, fluid in the lungs, hair loss, hallucinations, headache, heart failure, high blood pressure, hives, impotence, inability to breathe, increase in signs/symptoms of myasthenia gravis (severe muscle weakness), indigestion, inflammation or swelling of the eyelid, intolerance of light, itching, irregular heartbeat, loss of appetite, low blood pressure, memory loss, nausea, nervousness, nightmares, pain, pain or swelling in arms and legs, psoriasis, Peyronie's disease (curved and painful erection), rash, ringing in the ears, sensation of a foreign body in the eye, severe allergic reactions, sinus inflammation, skin tingling, sleepiness, slow heartbeat, stroke, stuffy nose, swelling, swelling of the face and neck, throbbing or fluttering heartbeat, tingling or pins and needles, upper respiratory infection, visual disturbances, weakness, wheezing, worsened angina pectoris (crushing chest pain)
Why should this drug not be prescribed: Do not use Timoptic if you have bronchial asthma, a history of bronchial asthma, or other serious breathing disorders such as emphysema, slow heartbeat, heart block (conduction disorder), active heart failure, or inadequate blood supply to the circulatory system (cardiogenic shock), or if you have ever had an allergic reaction or are sensitive to Timoptic or any of its ingredients.
Special warnings about this medication: Use Timoptic cautiously if you have a history of heart failure or poor circulation to the brain. Tell your doctor if you have any type of allergy. The frequency and severity of allergic reactions may increase while you are using Timoptic. Timoptic may mask the symptoms of low blood sugar. If you are diabetic, discuss this possibility with your doctor. Tell your doctor or dentist that you are using Timoptic if you have a medical emergency or before you have surgery or dental treatment. Timoptic may mask symptoms of an overactive thyroid. If your doctor suspects you have excessive thyroid function, he or she will manage your case carefully to avoid such symptoms as rapid heartbeat, which can occur when the drug is withdrawn too abruptly. Timoptic's antiglaucoma effects may decrease if you use the medication for a long time. Some older individuals may be more sensitive to this product than younger people. If you develop an eye infection, suffer an eye injury, or have eye surgery, check with your doctor. You may need to stop using Timoptic.
Possible food and drug interactions when taking this medication: If Timoptic is used with certain other drugs, the effects of either could be increased, decreased, or altered. It is especially important to check with your doctor before combining Timoptic with the following: Epinephrine (EpiPen) Catecholamine-depleting drugs, such as blood pressure drugs that contain reserpine (Serpasil) Calcium antagonists such as Cardizem and Isoptin Clonidine (Catapres, Clorpres, Combipres) Digitalis (Lanoxin) Quinidine (Quinaglute, Quinidex) Timoptic should not be used with other topical beta blockers and should be used with caution if you are taking oral beta blockers such as Inderal and Tenormin.
Special information if you are pregnant or breastfeeding: If you are pregnant or plan to become pregnant, inform your doctor immediately. No information is available about the safety of using Timoptic during pregnancy. Timolol appears in breast milk and may harm a nursing infant. If using Timoptic is essential to your health, your doctor may advise you to stop breastfeeding until your treatment is finished.
Recommended dosage: Your doctor will tailor an individual Timoptic dosage depending on your medical condition and how you responded to any previous glaucoma treatment. The usual recommended initial dose is to place 1 drop of 0.25 percent Timoptic in the affected eye(s) twice a day. If you do not respond satisfactorily to this dosage, your doctor may tell you to place 1 drop of 0.5 percent Timoptic in the affected eye(s) twice a day. The usual dose of Timoptic-XE is 1 drop of either 0.25 percent or 0.5 percent in the affected eye(s) once a day. Invert the closed container and shake it once before you use it. The usual dose of Betimol is 1 drop of either 0.25 percent or 0.5 percent in the affected eye(s) twice a day.
Overdosage: Seek medical treatment immediately if you think you might have used too much Timoptic. Call your local poison control center or your doctor for assistance. Symptoms of Timoptic overdose may include: Dizziness, headache, heart failure, shortness of breath, slow heartbeat, wheezing